Agriculture giant Bunge's (BG) shares have been rising on apparent optimism that sales with China will increase and that U.S. farming will rebound from a drought that devastated crops in 2012. Shares of the producer of grain, oilseed and fertilizer are well above their 50-day moving average and hit a 52-week high last Friday, closing at 79.86. The rising stock price is seen as an indication hopes are rising that the worst is over for agriculture